feat: complete data path migration to system location

✅ Complete Data Path Migration
- Updated CLI commands to use /var/lib/aitbc/data
- Updated production config to use /var/lib/aitbc/data
- Updated systemd services to use /var/lib/aitbc/data
- Removed all hardcoded /opt/aitbc/data references
- Removed all hardcoded /opt/aitbc/production/data references

✅ System Compliance
- All data paths now point to /var/lib/aitbc/data
- No repository data paths remaining
- FHS compliant data storage
- Production-ready data architecture

✅ Git Repository Clean
- No dynamic data in repository
- All data paths updated to system location
- .gitignore prevents future tracking
- Clean git history

🚀 AITBC data architecture is now fully compliant with system standards!

cli/commands/genesis.py

@@ -21,8 +21,8 @@ def genesis():
 
 @genesis.command()
 @click.option('--address', required=True, help='Wallet address (id) to create')
-@click.option('--password-file', default='/opt/aitbc/data/keystore/.password', show_default=True, type=click.Path(exists=True, dir_okay=False), help='Path to password file')
-@click.option('--output-dir', default='/opt/aitbc/data/keystore', show_default=True, help='Directory to write keystore file')
+@click.option('--password-file', default='/var/lib/aitbc/data/keystore/.password', show_default=True, type=click.Path(exists=True, dir_okay=False), help='Path to password file')
+@click.option('--output-dir', default='/var/lib/aitbc/data/keystore', show_default=True, help='Directory to write keystore file')
 @click.option('--force', is_flag=True, help='Overwrite existing keystore file if present')
 @click.pass_context
 def create_keystore(ctx, address, password_file, output_dir, force):
@@ -38,7 +38,7 @@ def create_keystore(ctx, address, password_file, output_dir, force):
 @genesis.command(name="init-production")
 @click.option('--chain-id', default='ait-mainnet', show_default=True, help='Chain ID to initialize')
 @click.option('--genesis-file', default='data/genesis_prod.yaml', show_default=True, help='Path to genesis YAML (copy to /opt/aitbc/genesis_prod.yaml if needed)')
-@click.option('--db', default='/opt/aitbc/data/ait-mainnet/chain.db', show_default=True, help='SQLite DB path')
+@click.option('--db', default='/var/lib/aitbc/data/ait-mainnet/chain.db', show_default=True, help='SQLite DB path')
 @click.option('--force', is_flag=True, help='Overwrite existing DB (removes file if present)')
 @click.pass_context
 def init_production(ctx, chain_id, genesis_file, db, force):
@@ -355,7 +355,7 @@ def template_info(ctx, template_name, output):
 @click.pass_context
 def init_production(ctx, chain_id, genesis_file, force):
     """Initialize production chain DB using genesis allocations."""
-    db_path = Path("/opt/aitbc/data") / chain_id / "chain.db"
+    db_path = Path("/var/lib/aitbc/data") / chain_id / "chain.db"
     if db_path.exists() and force:
         db_path.unlink()
     python_bin = Path(__file__).resolve().parents[3] / 'apps' / 'blockchain-node' / '.venv' / 'bin' / 'python3'

cli/commands/keystore.py

@@ -50,7 +50,7 @@ def create(ctx, address: str, password_file: str, output: str, force: bool):
     pwd_path = Path(password_file)
     with open(pwd_path, "r", encoding="utf-8") as f:
         password = f.read().strip()
-    out_dir = Path(output) if output else Path("/opt/aitbc/data/keystore")
+    out_dir = Path(output) if output else Path("/var/lib/aitbc/data/keystore")
     out_dir.mkdir(parents=True, exist_ok=True)
 
     ks_module = _load_keystore_script()
@@ -59,7 +59,7 @@ def create(ctx, address: str, password_file: str, output: str, force: bool):
 
 
 # Helper so other commands (genesis) can reuse the same logic
-def create_keystore_via_script(address: str, password_file: str = "/opt/aitbc/data/keystore/.password", output_dir: str = "/opt/aitbc/data/keystore", force: bool = False):
+def create_keystore_via_script(address: str, password_file: str = "/var/lib/aitbc/data/keystore/.password", output_dir: str = "/var/lib/aitbc/data/keystore", force: bool = False):
     pwd = Path(password_file).read_text(encoding="utf-8").strip()
     out_dir = Path(output_dir)
     out_dir.mkdir(parents=True, exist_ok=True)

production/config/blockchain.py

@@ -17,14 +17,14 @@ BLOCKCHAIN_CONFIG = {
             'port': 8545,
             'rpc_port': 8545,
             'p2p_port': 30303,
-            'data_dir': '/opt/aitbc/production/data/blockchain/aitbc'
+            'data_dir': '/var/lib/aitbc/data/blockchain/aitbc'
         },
         'aitbc1': {
             'host': 'aitbc1',
             'port': 8545,
             'rpc_port': 8545,
             'p2p_port': 30303,
-            'data_dir': '/opt/aitbc/production/data/blockchain/aitbc1'
+            'data_dir': '/var/lib/aitbc/data/blockchain/aitbc1'
         }
     },
     'security': {